linux-kernel - Re: [PATCH V2] rcu: change function declaration to bool

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Message-ID: <20150511154510.GA17712@opentech.at>
Date:	Mon, 11 May 2015 17:45:10 +0200
From:	Nicholas Mc Guire <der.herr@...r.at>
To:	Josh Triplett <josh@...htriplett.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Nicholas Mc Guire <hofrat@...dl.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] rcu: change function declaration to bool

On Mon, 11 May 2015, Josh Triplett wrote:

> On Mon, May 11, 2015 at 11:28:30AM -0400, Steven Rostedt wrote:
> > On Mon, 11 May 2015 17:10:59 +0200
> > Nicholas Mc Guire <hofrat@...dl.org> wrote:
> > 
> > > rcu_cpu_has_callbacks() is declared int but is actually returning bool and
> > > and as the function description states " * Return true if the specified 
> > > CPU has any callback....", this probably should be a bool. All (3) 
> > > call-sites currently treat it as bool so the declaration.
> > > 
> > > 
> > > Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
> > > ---
> > > 
> > > V2: fixed up commit message and tool infos as requested by 
> > >     Josh Triplett <josh@...htriplett.org>
> > > 
> > > Type-checking coccinelle spatches are being used to locate type 
> > > mismatches between function signatures and return values. 
> > > ./kernel/rcu/tree.c:3538 WARNING: return of wrong type
> > >                     int != bool, 
> > > 
> > > Patch was compile tested with x86_64_defconfig (implies CONFIG_TREE_RCU=y)
> > > 
> > > Patch is against 4.1-rc3 (localversion-next is -next-20150511)
> > 
> > I think what Josh was saying is that all the above except for the "V2"
> > should be above the signature. Everything between the "---" and the
> > patch gets tossed out when committed into git.
> > 
> > Giving credit to coccinelle and even what branch and config was used
> > for testing is something we want in the git change log history.
> 
> Yes, exactly.
>
ok - sorry for being so complicated.
had been putting config info below in all patches - and in git log I do
not see that information being included - anyway will move it up and 
resend in a momemt.

thx!
hofrat
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